<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="父编号" prop="parentId">
        <el-input
            v-model="queryParams.parentId"
            placeholder="请输入父编号"
            clearable
            size="small"
            @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label=" 节点名称" prop="nodeName">
        <el-input
            v-model="queryParams.nodeName"
            placeholder="请输入 节点名称"
            clearable
            size="small"
            @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
            type="primary"
            plain
            icon="el-icon-plus"
            size="mini"
            @click="handleAdd"
            v-hasPermi="['wms:testTree:add']"
        >新增
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table
        v-loading="loading"
        :data="testTreeList"
        row-key="id"
        default-expand-all
        :tree-props="{children: 'children', hasChildren: 'hasChildren'}"
    >
      <el-table-column label="父编号" align="center" prop="parentId" :formatter="customerIdFormat"/>
      <el-table-column label="节点名称" align="center" prop="nodeName"/>
      <el-table-column label="内容" align="center" prop="content"/>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
              size="mini"
              type="text"
              icon="el-icon-edit"
              @click="handleUpdate(scope.row)"
              v-hasPermi="['wms:testTree:edit']"
          >修改
          </el-button>
          <el-button
              size="mini"
              type="text"
              icon="el-icon-delete"
              @click="handleDelete(scope.row)"
              v-hasPermi="['wms:testTree:remove']"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 添加或修改testTree对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="父编号" prop="parentId">
          <TreeSelect v-model="form.parentId" :options="testTreeOptions" :normalizer="normalizer"
                      placeholder="请选择父编号"
          />
        </el-form-item>
        <el-form-item label=" 节点名称" prop="nodeName">
          <el-input v-model="form.nodeName" placeholder="请输入 节点名称"/>
        </el-form-item>
        <el-form-item label="内容">
          <editor v-model="form.content" :min-height="192"/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { addTestTree, delTestTree, getTestTree, listTestTree, updateTestTree } from '@/api/wms/testTree'
import TreeSelect from '@riophae/vue-treeselect'
import '@riophae/vue-treeselect/dist/vue-treeselect.css'
import Editor from '@/components/Editor'

/**
 * 单标树表生成第一次会遍历所有的值拿到最小的元素的parentId,没有则是0，
 * 注意：元素的parentId不能是自己的id，因为单表的树表生成后不分主子表，所以当前表中每个元素都有可能是
 * 主元素，否则子元素，当当前元素的parentId是自己的id后会产生无限循环，因为当前元素的parentId是自己，第一次遍历拿到自己，
 * 拿到自己之后还有parentId又是自己，又遍历自己，直到堆栈溢出
 */
export default {
  name: 'TestTree',
  components: {
    Editor,
    TreeSelect
  },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 显示搜索条件
      showSearch: true,
      // testTree表格数据
      testTreeList: [],
      // testTree树选项
      testTreeOptions: [],
      // 弹出层标题
      title: '',
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        parentId: null,
        nodeName: null,
        content: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {},
      customerIdOptions: []
    }
  },
  created() {
    this.getDicts('delivery_status').then(response => {
      this.customerIdOptions = response.data
    })
    this.getList()
  },
  methods: {
    // 客户字典翻译
    customerIdFormat(row, column) {
      return this.selectDictLabel(this.customerIdOptions, row.parentId)
    },
    /** 查询testTree列表 */
    getList() {
      this.loading = true
      listTestTree(this.queryParams).then(response => {
        this.testTreeList = this.handleTree(response.data, 'id', 'parentId')
        this.loading = false
      })
    },
    /** 转换testTree数据结构 */
    normalizer(node) {
      if (node.children && !node.children.length) {
        delete node.children
      }
      return {
        id: node.id,
        label: node.nodeName,
        children: node.children
      }
    },
    /** 查询部门下拉树结构 */
    getTreeSelect() {
      listTestTree().then(response => {
        console.log(response.data)
        this.testTreeOptions = []
        const data = { id: 0, nodeName: '顶级节点', children: [] }
        data.children = this.handleTree(response.data, 'id', 'parentId')
        this.testTreeOptions.push(data)
      })
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        parentId: null,
        nodeName: null,
        content: null
      }
      this.resetForm('form')
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm('queryForm')
      this.handleQuery()
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset()
      this.getTreeSelect()
      this.open = true
      this.title = '添加testTree'
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset()
      this.getTreeSelect()
      if (row != null) {
        this.form.parentId = row.id
      }
      getTestTree(row.id).then(response => {
        this.form = response.data
        this.open = true
        this.title = '修改testTree'
      })
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs['form'].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateTestTree(this.form).then(response => {
              this.msgSuccess('修改成功')
              this.open = false
              this.getList()
            })
          } else {
            addTestTree(this.form).then(response => {
              this.msgSuccess('新增成功')
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      this.$confirm('是否确认删除testTree编号为"' + row.id + '"的数据项?', '警告', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(function() {
        return delTestTree(row.id)
      }).then(() => {
        this.getList()
        this.msgSuccess('删除成功')
      })
    }
  }
}
</script>
